Key ring holder



FIG. 1 is a perspective view of a key ring holder showing my new design, key rings, not formiing part of the claimed design, being illustrated in broken lines;

FIG. 2 is a front elevational view thereof, the rear elevational view being a mirror image of the front elevational view;

FIG. 3 is a side elevational view thereof, the opposite side elevational view being a mirror image of the side elevational view;

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a bottom plan view thereof. 

The ornamental design for a key ring holder, as shown. 